Robot, robot control method, and storage medium

Abstract

A robot includes an exterior, a casing provided inside the exterior, and a hardware processor configured to control operation of the casing inside the exterior. The casing includes a head part and a body part, and the hardware processor performs control to express a trembling motion by repeatedly causing a twisting motion of the casing inside the exterior around a rotation axis at a connection point between the body part and the head part, in a state where at least part of the robot is in contact with a placement surface.

What is claimed is: 
     
         1 . A robot comprising:
 an exterior;   a casing provided inside the exterior; and   a hardware processor configured to control operation of the casing inside the exterior,   wherein:   the casing includes a head part and a body part, and   the hardware processor performs control to express a trembling motion by repeatedly causing a twisting motion of the casing inside the exterior around a rotation axis at a connection point between the body part and the head part, in a state where at least part of the robot is in contact with a placement surface.   
     
     
         2 . The robot according to  claim 1 , wherein the control to express the trembling motion comprises repeatedly causing the twisting motion of the casing in a state where the casing is bent with the connection point between the body part and the head part as a bending point. 
     
     
         3 . The robot according to  claim 1 , wherein the hardware processor is configured to detect a battery level and to express the trembling motion in response to detecting that the battery level is less than a predetermined value. 
     
     
         4 . The robot according to  claim 1 , wherein the at least the part of robot includes the body part and the head part of the robot which contact with the placement surface through the exterior. 
     
     
         5 . The robot according to  claim 1 , wherein the exterior simulates fur. 
     
     
         6 . A representation method executed by a robot including an exterior and a casing provided inside the exterior, the casing having a head part and a body part, and the method comprising:
 operating the casing inside the exterior,   wherein the operating comprises expressing a trembling motion by repeatedly causing a twisting motion of the casing inside the exterior around a rotation axis at a connection point between the body part and the head part, in a state where at least part of the robot is in contact with a placement surface.   
     
     
         7 . A non-transitory storage medium storing a program for a robot including an exterior and a casing provided inside the exterior, the casing having a head part and a body part, and the program being executable by the robot to control processes comprising:
 operating the casing inside the exterior,   wherein the operating comprises expressing a trembling motion by repeatedly causing a twisting motion of the casing inside the exterior around a rotation axis at the connection point between the body part and the head part, in a state where at least part of the robot is in contact with a placement surface.